The roof of the church in Uyo, in the south of Nigeria, caved in on worshippers who had gathered for the ordination of a bishop.

The church was still under construction and workers had rushed to complete it for the ordination, witnesses say.

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It is unclear exactly how many people died in the roof collapse but dozens of people were injured

Image copyrightReuters

It is not unusual for buildings to collapse in Nigeria, the BBC World Service's Africa editor, Mary Harper, reports. Corners are cut, materials are sub-standard and the quality of work is often shoddy, she adds.